摘要：
public class SqlHelp { public static int ExecuteNonQuery(string sql, params SqlParameter[] pms) { string conStr = ConfigurationManager.ConnectionStrings["connStr"].ConnectionString; SqlConnection conn = new SqlConnection(conStr); conn.Open();... 阅读全文
摘要：
C#日期相减的的方法 DateTime t1 = DateTime.Parse("2005-01-01"); DateTime t2 = DateTime.Parse("2006-01-01"); System.TimeSpan ts = t2 - t1; int days = ts.Days; 阅读全文
